say it: il-ee-GAL-i-tee
illegality is a noun meaning "unlawfulness by virtue of violating some legal statute". It is pronounced /ˌɪliˈɡælɪti/ — il-ee-GAL-i-tee. It carries one recorded sense.
unlawfulness by virtue of violating some legal statute
Forms marked are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for illegality come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.